# Is my optical flow config correct? **URL:** \ **Category:** PX4 Autopilot\ **Created:** [March 18, 2026, 9:37am UTC](https://discuss.px4.io/t/is-my-optical-flow-config-correct/48664 "2026-03-18T09:37:19Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![eriog](https://discuss.px4.io/letter_avatar_proxy/v4/letter/e/a183cd/32.png) [@eriog](https://discuss.px4.io/u/eriog)\ **Post date:** [March 18, 2026, 9:37am UTC](https://discuss.px4.io/t/is-my-optical-flow-config-correct/48664/1 "2026-03-18T09:37:19Z")
Hi ! I’m trying to add optical flow sensor to my drone, but I don’t want to risk a crash so I tested the new sensor by manualy moving the drone around (without prop) and recording flight data: ![image](https://discuss.px4.io/uploads/default/original/3X/7/d/7da4cb7f2efcfedee9a7b0b75902e86e1344d04b.png) I have this situation where _estimator\_optical\_flow\_vel_ velocity seems right, but gyro\_rate is upside down. Is this expected and safe to fly ? best ---
**Author:** ![Taolinyinjiu](https://discuss.px4.io/user_avatar/discuss.px4.io/taolinyinjiu/32/21302_2.png) [@Taolinyinjiu](https://discuss.px4.io/u/Taolinyinjiu)\ **Post date:** [March 18, 2026, 5:02pm UTC](https://discuss.px4.io/t/is-my-optical-flow-config-correct/48664/2 "2026-03-18T17:02:40Z")
Hello, I have been studying some knowledge about optical flow recently. I hope this can be helpful to you. maybe you need to click this web page and check related coordinate systems and the like. Good luck to you! > **[Optical Flow | PX4 Guide (v1.16)](https://docs.px4.io/v1.16/en/sensor/optical_flow)** > > PX4 User and Developer Guide ---
**Author:** ![system](https://discuss.px4.io/uploads/default/original/3X/7/3/73ce918bdcd64854de904f0c8d9ab70ca9723f2a.png) [@system](https://discuss.px4.io/u/system)\ **Post date:** [June 16, 2026, 5:02pm UTC](https://discuss.px4.io/t/is-my-optical-flow-config-correct/48664/3 "2026-06-16T17:02:43Z")
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